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Ford Performance BOSS 302 Cylinder Block - Big Bore

Market Price $2,146.99 You Save 12% ($247.00)
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  • Item 399332
  • MPN# M-6010-B302BB

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    Features & Details

    • Cast Iron Cylinder Block
    • Factory Engine Block Style
    • 125” Bore Size (Siamese)
    • Splayed 4-Bolt Main on 2, 3, 4 Main Caps
    • 2-Bolt Main on First and Fifth Main Caps
    • 2” Deck Height
    • Cast Iron Main Cap Material
    • Machined to Accept Factory Roller Lifter Guides and Lifter Guide Retainer
    • NASCAR Inspired Front Oil Feed on Both Lifter Galleys
    • Made for Highly Competitive Environments
    • Fits All 1979-1995 Ford Mustang Models
    Proven for Track Performance. The Ford Performance BOSS 302 Cylinder Block with Big Bore is an engine block with a proven capability on the race track and on the street. Its 4.125 bore capacity makes it a winner right out of the box along with its superior design and construction. This ready to assemble block will indeed expand your Mustang’s racing performance.

    For a Simple and Economical Assembly. This high-performance engine block has been designed for simple, fast, and economical assembly. It has been machined to accept factory roller lifter guides and lifter guide retainer. It has also been machined with an additional .125-inch at the initial block fixturing and boring stage. And with its design, this engine block will support engine sizes of up to 363 cubic inches with an unfinished 4.120-inch bore size.

    Designed for Long-Lasting Use. The BOSS 302 Cylinder Block has been cast and machined for long-lasting durability. It has been made out of diesel-grade iron with Siamese bores, along with thick decks and walls. To ensure optimum performance, this engine block requires the special length 1/2" head bolts M-6065-BOSS or head studs M-6014-BOSS with M-6049-X306/307/Z304DA heads. It should also be noted that this block is designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads. It is not intended for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads

    Important Note: This cylinder block is designed for use on competitions only. Installation of this engine on a vehicle that is driven on public roads and highways may violate US and Canadian emissions laws and regulations.

    Application. The Ford Performance BOSS 302 Cylinder Block with Big Bore has been designed to fit all Ford Mustang vehicles.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Details

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    • (1) Aluminum Cylinder Block
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 01, 08, 09, 19
    • Cobra - 93, 94, 95, 96, 97, 98, 99, 01, 03, 04
    • Cobra R - 93, 95, 00
    • EcoBoost - 15, 16, 17, 18, 19
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19
    • GT350 - 15, 16, 17, 18, 19
    • GT350R - 15, 16, 17, 18, 19
    • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 79, 80, 81, 82, 83, 84, 85, 86
    • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17

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    Questions & Answers (1)

    1 Top Rated Question

    What is the horse power rating???

    • The Ford Performance BOSS 302 Cylinder Block does not have a power rating.

    Helpful (0)
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    Customer Reviews (1) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Weekend

    • Performance Gain 5 5
    • Fit 5 5



    • 5/5

      Installation Time: Weekend

      May 12, 2018

      Boss 302 bigbore

      EVERYTHING was as expected. We split the factory block down the center and needed A replacement.

      JohnC

      Year: 1989 Submodel: LX

      Helpful (4)

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